Esempio n. 1
0
 /** Finishes the index creation. */
 void finish() {
   if (reorder == null) return;
   for (int i = 1; i < reorder.size(); i++) {
     if (reorder.get(i)) Arrays.sort(idsList.get(i), 0, lenList.get(i));
   }
   reorder = null;
 }
Esempio n. 2
0
  /**
   * Scans an external ID.
   *
   * @param f full flag
   * @param r root flag
   * @return id
   * @throws IOException I/O exception
   */
  private byte[] externalID(final boolean f, final boolean r) throws IOException {
    byte[] cont = null;
    final boolean pub = consume(PUBLIC);
    if (pub || consume(SYSTEM)) {
      checkS();
      if (pub) {
        pubidLit();
        if (f) checkS();
      }
      final int qu = consume(); // [11]
      if (qu == '\'' || qu == '"') {
        int ch;
        final TokenBuilder tok = new TokenBuilder();
        while ((ch = nextChar()) != qu) tok.add(ch);
        if (!f) return null;
        final String name = string(tok.finish());
        if (!dtd && r) return cont;

        final XMLInput tin = input;
        try {
          final IO file = input.io().merge(name);
          cont = file.read();
        } catch (final IOException ex) {
          Util.debug(ex);
          // skip unknown DTDs/entities
          cont = new byte[] {'?'};
        }
        input = new XMLInput(new IOContent(cont, name));

        if (consume(XDECL)) {
          check(XML);
          s();
          if (version()) checkS();
          s();
          if (encoding() == null) error(TEXTENC);
          ch = nextChar();
          if (s(ch)) ch = nextChar();
          if (ch != '?') error(WRONGCHAR, '?', ch);
          ch = nextChar();
          if (ch != '>') error(WRONGCHAR, '>', ch);
          cont = Arrays.copyOfRange(cont, input.pos(), cont.length);
        }

        s();
        if (r) {
          extSubsetDecl();
          if (!consume((char) 0)) error(INVEND);
        }
        input = tin;
      } else {
        if (f) error(SCANQUOTE, (char) qu);
        prev(1);
      }
    }
    return cont;
  }
Esempio n. 3
0
 /**
  * Sets the output text.
  *
  * @param text output text
  * @param size text size
  */
 public final void setText(final byte[] text, final int size) {
   byte[] txt = text;
   if (Token.contains(text, '\r')) {
     // remove carriage returns
     int ns = 0;
     for (int r = 0; r < size; ++r) {
       final byte b = text[r];
       if (b != '\r') text[ns++] = b;
     }
     // new text is different...
     txt = Arrays.copyOf(text, ns);
   } else if (text.length != size) {
     txt = Arrays.copyOf(text, size);
   }
   if (editor.text(txt)) {
     if (hist != null) hist.store(txt, editor.pos(), 0);
   }
   if (isShowing()) resizeCode.invokeLater();
 }
Esempio n. 4
0
  /**
   * Adds values to the index.
   *
   * @param key key to be indexed
   * @param vals sorted values
   */
  void add(final byte[] key, final int... vals) {
    // token index: add values. otherwise, reference existing values
    final int id = type == IndexType.TOKEN ? values.put(key) : values.id(key), vl = vals.length;
    // updatable index: if required, resize existing arrays
    while (idsList.size() < id + 1) idsList.add(null);
    if (lenList.size() < id + 1) lenList.set(id, 0);

    final int len = lenList.get(id), size = len + vl;
    int[] ids = idsList.get(id);
    if (ids == null) {
      ids = vals;
    } else {
      if (ids.length < size) ids = Arrays.copyOf(ids, Array.newSize(size));
      System.arraycopy(vals, 0, ids, len, vl);
      if (ids[len - 1] > vals[0]) {
        if (reorder == null) reorder = new BoolList(values.size());
        reorder.set(id, true);
      }
    }
    idsList.set(id, ids);
    lenList.set(id, size);
  }
Esempio n. 5
0
  @Override
  public void insert(final int pre, final byte[] entries) {
    final int nnew = entries.length;
    if (nnew == 0) return;
    dirty();

    // number of records to be inserted
    final int nr = nnew >>> IO.NODEPOWER;

    int split = 0;
    if (used == 0) {
      // special case: insert new data into first block if database is empty
      readPage(0);
      usedPages.set(0);
      ++used;
    } else if (pre > 0) {
      // find the offset within the block where the new records will be inserted
      split = cursor(pre - 1) + IO.NODESIZE;
    } else {
      // all insert operations will add data after first node.
      // i.e., there is no "insert before first document" statement
      throw Util.notExpected("Insertion at beginning of populated table.");
    }

    // number of bytes occupied by old records in the current block
    final int nold = npre - fpre << IO.NODEPOWER;
    // number of bytes occupied by old records which will be moved at the end
    final int moved = nold - split;

    // special case: all entries fit in the current block
    Buffer bf = bm.current();
    if (nold + nnew <= IO.BLOCKSIZE) {
      Array.move(bf.data, split, nnew, moved);
      System.arraycopy(entries, 0, bf.data, split, nnew);
      bf.dirty = true;

      // increment first pre-values of blocks after the last modified block
      for (int i = page + 1; i < used; ++i) fpres[i] += nr;
      // update cached variables (fpre is not changed)
      npre += nr;
      meta.size += nr;
      return;
    }

    // append old entries at the end of the new entries
    final byte[] all = new byte[nnew + moved];
    System.arraycopy(entries, 0, all, 0, nnew);
    System.arraycopy(bf.data, split, all, nnew, moved);

    // fill in the current block with new entries
    // number of bytes which fit in the first block
    int nrem = IO.BLOCKSIZE - split;
    if (nrem > 0) {
      System.arraycopy(all, 0, bf.data, split, nrem);
      bf.dirty = true;
    }

    // number of new required blocks and remaining bytes
    final int req = all.length - nrem;
    int needed = req / IO.BLOCKSIZE;
    final int remain = req % IO.BLOCKSIZE;

    if (remain > 0) {
      // check if the last entries can fit in the block after the current one
      if (page + 1 < used) {
        final int o = occSpace(page + 1) << IO.NODEPOWER;
        if (remain <= IO.BLOCKSIZE - o) {
          // copy the last records
          readPage(page + 1);
          bf = bm.current();
          System.arraycopy(bf.data, 0, bf.data, remain, o);
          System.arraycopy(all, all.length - remain, bf.data, 0, remain);
          bf.dirty = true;
          // reduce the pre value, since it will be later incremented with nr
          fpres[page] -= remain >>> IO.NODEPOWER;
          // go back to the previous block
          readPage(page - 1);
        } else {
          // there is not enough space in the block - allocate a new one
          ++needed;
        }
      } else {
        // this is the last block - allocate a new one
        ++needed;
      }
    }

    // number of expected blocks: existing blocks + needed block - empty blocks
    final int exp = blocks + needed - (blocks - used);
    if (exp > fpres.length) {
      // resize directory arrays if existing ones are too small
      final int ns = Math.max(fpres.length << 1, exp);
      fpres = Arrays.copyOf(fpres, ns);
      pages = Arrays.copyOf(pages, ns);
    }

    // make place for the blocks where the new entries will be written
    Array.move(fpres, page + 1, needed, used - page - 1);
    Array.move(pages, page + 1, needed, used - page - 1);

    // write the all remaining entries
    while (needed-- > 0) {
      freeBlock();
      nrem += write(all, nrem);
      fpres[page] = fpres[page - 1] + IO.ENTRIES;
      pages[page] = (int) bm.current().pos;
    }

    // increment all fpre values after the last modified block
    for (int i = page + 1; i < used; ++i) fpres[i] += nr;

    meta.size += nr;

    // update cached variables
    fpre = fpres[page];
    npre = page + 1 < used && fpres[page + 1] < meta.size ? fpres[page + 1] : meta.size;
  }